I bought this in Manila for work 7 years ago. It's size XS, but it's a bit larger than Japanese sizes. It's thin and light, and the lining is smooth, so it's easy to slip your arms through. How about it if you're looking for something unique? The ribbing at the hem and wrists is quite tight, so it felt just right to wear over a T-shirt. Brand: PENSHOPPE Size: XS Shoulder width: 47cm Body width: 51cm Sleeve length: 61cm Length: 64.5cm